Could there be some more aggressive cookie management going on with Internet explorer since I activated "do not track" in the browser?
System: Win 7 Home Premium running Internet Explorer 9. All current Microsoft updates. Microsoft Security Essentials virus/spam tools.
From Forum FAQ:
Why do I get logged off automatically?
If you do not check the Log me in automatically box when you login, the board will only keep you logged in for a preset time. This prevents misuse of your account by anyone else. To stay logged in, check the box during login. This is not recommended if you access the board from a shared computer, e.g. library, internet cafe, university computer lab, etc. If you do not see this checkbox, it means the board administrator has disabled this feature.